Player stuck after dying
Issue We've had several players being unable to connect to the server and having alot of issues after dying. When a player dies, the error displayed in "Log 1, Error after Dying" (see below for the logs) was posted in console. The player got teleported to spawn (which usually happens after they die) but they were unable to move or do anything. It looks like they were in a state between being death and still alife which caused them to be stuck. They can't move or turn and the camera seems to be away from their character (Like spectator mode, and very shaking). After killing them via console (hoping it would solve it) the same error got posted in console and they are still stuck. After requesting them to reconnect to the server, they were unable to reconnect and the error in "Log2, Login Timeout" (Parts hidden for safety / privacy) was posted in console at each login attempt. Disabling the mod Improvable Skills fixed the issue but since the mod is an important aspect of the modpack, we prefer to have the issue fixed so we can enable the mod later again.
Background information I'm running a public server for the modpack Dimension Zero in which this issue is happening. The server is running Sponge (Plugin manager for modded Minecraft) but this doesn't seem to be causing it.
Versions Modpack: Dimension Zero version 9.0 Mod: Improvable Skills version 3.6.3r
What we believe is the issue When reading the errors, my first thought was that the mod Corail Tombstone was the cause of the issue since it was called first. After speaking with Corail31 (the developer) and showing him the logs, he mentioned that Improvable Skills was the cause of the issue and even pointed to this part of the code which he believes is the cause of the issue.